James Cameron compares Harry Potter 3D conversion to Clash Of The Titans

James Cameron has lashed out once again against post-production 3D conversions whilst speaking at the Blu-Con event in Beverly Hills.

This time, he had a fresh example of the folly of trying to add another dimension to a flick after the cameras have finished rolling: Harry Potter And The Deathly Hallows: Part 1.

"I maintain you can't do a good conversion of a two-hour movie with high quality in a few weeks like they tried to do with Clash Of The Titans ," Cameron said.

"I don't mean to throw that movie under the bus because my buddy Sam is in it, but I think everybody realised that this was a point at which people had gone too far."

"You see another stumble with the most recent Harry Potter movie from the same studio making the same mistake - except really getting spanked for it now because they didn't get the film done.

"They announced it in 3D - threw a bunch of money trying to convert it to 3D in post-production and it simply didn't work. They just didn't get it done."

Now, we absolutely agree with the sentiment, but shouldn't Jim be congratulating Warner Brothers for pulling 3D Harry Potter rather than putting out an inferior product?

Still, he's a genius, he can pretty much say what he wants.

And it wasn't all negative - Cameron is all for post-production 3D, as long as it's used on classic movies like Jaws or ET . Which is nice.

Sam Ashurst is a London-based film maker, journalist, and podcast host. He's the director of Frankenstein's Creature, A Little More Flesh + A Little More Flesh 2, and co-hosts the Arrow Podcast. His words have appeared on HuffPost, MSN, The Independent, Yahoo, Cosmopolitan, and many more, as well as of course for us here at GamesRadar+.